Journal
SUPERLATTICES AND MICROSTRUCTURES
Volume 44, Issue 2, Pages 137-142Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2008.04.006
Keywords
ZnO nanostructures; sol-gel method; optical properties
Categories
Funding
- National Natural Science Foundation of China [60778040]
- Ministry of Science and Technology of China [2007AA032400448]
- Jilin province [20060518, 20060123]
- Ministry of Education [207025]
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The effects of annealing temperature on the morphologies and optical properties of ZnO nanostructures synthesized by sol-gel method were investigated in detail. The SEM results showed that uniform ZnO nanorods formed at 900 degrees C. The PL results showed an ultraviolet emission peak and a relatively broad visible light emission peak for all ZnO nanostructures sintered at different temperature, The increase of the crystal size and decrease of tensile stress resulted in the UV emission peak shifted from 386 to 389 nm when annealing temperature rose from 850 to 1000 degrees C. The growth mechanism of the ZnO nanorods is discussed. (C) 2008 Elsevier Ltd. All rights reserved.
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